Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Title: Treatise on canon law
Subject: Liturgy
Title: Breviarium cum notis
Subject: Liturgy
Title: Breviarium cum notis
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Philosophy
Author of work: Aristoteles
Title: De memoria et reminiscentia
Subject: Civil Law
Author of work: Roffredus
Title: Summa de ordine judiciorum
Subject: Civil Law
Author of work: Roffredus
Title: Summa de ordine judiciorum